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OpenStudy (anonymous):
The potential at a point is 20 V. The work done in bringing a charge of 2 C from infinity to this point will be a 10 J b 40 J c 5 J d 20 J
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OpenStudy (anonymous):
Can you tell me what do you understand by the sentence "Potential at a point is 20V " ?
OpenStudy (anonymous):
considering potential at infinity to be 0 , work = charge*pot difference = 2*20 = 40
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